RDF System Management Manual for H-Series RVUs (RDF 1.8)

After issuing the ADD commands (but before starting RDF), you can change some parameter
values in the configuration file by issuing ALTER commands.
NOTE: Instead of issuing SET and ADD commands interactively within an RDFCOM session,
you can create and execute an RDF configuration command file. The first time you configure
RDF, you can either configure it interactively or use the text editor to create a command file.
After you have configured RDF, you can easily create a command file from the existing
configuration file as explained in “Creating a Configuration Command File” (page 97). You can
then use that command file whenever you need to reconfigure RDF. See Appendix B (page 329)
for a sample configuration file.
Setting Global Parameters
The SET RDF command establishes values for global parameters that apply either to the entire
RDF system or to all updater processes. These parameters and their default values are:
$0• LOGFILE
10 (seconds)• UPDATERDELAY
60 (seconds)• UPDATERTXTIME
60 (seconds)• UPDATERRTDWARNING
PROTECTED• UPDATEROPEN
$SYSTEM.RDF• SOFTWARELOC
OFF• NETWORK
OFF• NETWORKMASTER
ON• UPDATEREXCEPTION
volume undefined• LOCKSTEPVOL
OFF• REPLICATEPURGE
OFF• REMOTE MIRROR
system undefined• REMOTE STANDBY
(no default)• OWNER
LOGFILE Parameter
The LOGFILE parameter specifies the name of the EMS collector to which all RDF command,
event, error, and warning messages are to be directed.
The following commands specify the EMS collector $CTD25 as the RDF log file on both the
primary and backup systems:
]SET RDF LOGFILE $CTD25
]ADD RDF
The collector on the primary system receives log messages from the extractor and monitor
processes (plus RDFCOM messages that are logged in message 835).
The collector on the backup system receives log messages from the receiver, purger, and all
updater processes (plus RDFCOM messages that are logged in message 835).
UPDATERDELAY Parameter
The UPDATERDELAY parameter specifies how many seconds (from 1 to 10) the updater processes
should delay upon reaching the logical EOF in the image trail before attempting a new read
operation. The default is 10 seconds.
88 Installing and Configuring RDF